Indicates the number of upstream packets in the
ACL-based VLAN traffic statistics collection.
After the first query, 0 is fixedly returned.
After the second query, traffic statistics of the
VLAN between the two queries are returned. If the
query or delete operation is not performed on the
traffic statistics of this VLAN within 10 minutes,
the traffic statistics collection of the VLAN is invalid.
If a new index is specified in the second query,
the traffic statistics of the new VLAN are collected.
The system can collect the traffic statistics of
a maximum of 64 VLANs concurrently.